Eye Sight to Color

http://www.howstuffworks.com/question51.htm
http://www.pasadenaeye.com/faq/faq15/faq15_text.html
http://www.colors-4life.com/

Broad Question

What color does the human eye notice first?

Specific Question

What color does the human eye notice first (Red,Blue,Green,Orange,or Pink)?

Hypothesis

I hypothesize that the color noticed first and most frequently, will be Red.

Graph of Hypothesis

Variables

Independent Variable: Color

Dependent Variable: # of times color noticed first

Variables That Need To Be Controlled: Color, Size of index card with color, time blindfolded, color of blindfold.

---

---

---

---

Experimental Design

I am going to be conducting my experiment that will help me determine which color does the human eye notice the fastest. i will be conducting my project at my house and at school. there will be 20 people that will be blindfolded then unblindfold them. they have to pick a color and i will be recording the data. i will be doing the experiment one time for each person. i will be recording the data on a data table printed of the computer. i will put a check next to the color every time it is chosen first then find the total of each color and that will tell me which color the human eye notices the fastest.

Materials List

• Stop watch
• Pencil
• Clipboard
• Copy of spread sheet
• Blindfold
• 5 index cards with colors on them (red,blue,pink,green,orange)

Detailed Procedure

1. Gather materials and person that u are going to experiment on meet some were.
2. have other person put on blind fold
3. lay out the 6 index cards in any order
4. start stop watch and take off blind fold when it reaches 30 (sec)
5. record the color they chose
6. repeat steps 1-4 19 more times.

---

---

---

---

Background Research

the sense of sight is simulated by energy- the energy of light- is extremely powerful. the human visual system contains 70% of all the sensory nerve endings in the body. one nerve fiber serves every 2 mussels of the eye compared to 1 for every 200 musles in the rest of the body.

three types of cone cells in your retina detect red,blue,and green. light stimulates different combination's of these cones to produce all the colors you see. in some people, one type of cone cell is missing or faulty. the person cant see that color. we say that he or she is colorblind.

pupil size is regulated by a reflex action that allows less light into the eye in bright conditions so the observer is not dazzled and more light to enter in dim conditions to make vision possible.

color is a sensation a response of your eye and brain to light. visible light is made up of energy waves. they are not all the same wave length. the light that causes you to see red is made up of the longest visible waves. the shortest visible waves cause you to see the color violet.

References

Beckelman, laurie. the human body. san francisco: sheena coupe, 1999. Print

Kittredge, mary. the human body: an overview.philadelphia:Chelsea house publishers, 2001. Print.

Perry , john, and jeanne Bendick. our wonderful eyes.new york: whittlesey house, 1995. Print.

Walker , rihard. human body. new york: dk publishing inc, 2005. Print.

---

---

---

---

---

Results

Data Table

Graph

Photo

---

---

---

---

---

Data Analysis

===Conclusion


The original purpose of this experiment was to test what color the human eye noticed first. I found out that the human eye is attracted to bright colors. The results of my experiment were that red (30%) was noticed the most, then green (25%), pink (15%), orange (15%), and lastly purple (15%).

---

---

---

---

---

=

Discussion

My hypothesis was that the color red would get noticed first. My results do support my hypothesis because red was the color noticed first the highest percent of the time. There is a relationship between my two variables since the number of times spotted first depends on the color. Some patterns and trends in the data are that the first color that the person spotted depended on how bright that color was. I think my tests went smoothly because it was easy to record the data and to do the tests. If I could improve my experiment I would put every color on its own index card. A future study might involve something like this to explore the human eye even more.